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29th Aug 2009

Diana and Meera's Best Bits


Diana O'Carroll

Meera Senthilingam
Milky Tea

Diana and Meera select their favourite bits of Naked Science, including parajetting over the Himalayas, digging up Greek brothels and making the perfect cup of tea scientifically. Plus, Dr Hal blows up an ostrich egg and blasts a 'barking dog' down a seven-foot test tube. *No animals were harmed in the making of this podcast*

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Interviews

(c) Anioliver @ Wikimedia

Over Everest

It seems that it’s no longer impressive just to have been able to climb mount Everest; now the goal is to fly over it! We spoke to Giles Cardozo and Bear Grylls...

(c) http://en.wikipedia.org/wiki/File:JomonPottery.JPG

Dating by Water Clock

There's a new method of archaeological dating in town and it doesn't involve wine or chocolate. Rehydroxylation could give carbon-14 the boot...

(c) Used by permission of Dan Meyer, Sword Swallowers Association Int'l - www.swordswallow.org

The Science of Sword Swallowing

Is sword swallowing an ancient art, or just a magic trick? Dan Meyer, president of the Sword Swallowers Federation International, joins us to explain the science behind swallowing swords, and how we was awarded an IgNobel Prize...

(c) Jastrow

Greek Brothels Started at Home

We find out how life in the ancient Greek home wasn't just dinner and a game of Trivial Pursuit...

(c) Materialscientist

Chemistry in its Element - Erbium

Where did spectroscopy come from? This week's element is erbium: an otherwise little-known substance with a luminous secret...

(c) Dave Ansell

Hormones and the Money Markets

Could the credit crunch be due to traders' hormone levels? Meera speaks to John Coates to find out...

(c) Jon Sullivan

Explosive Chemistry with Dr Hal

This week's Explosive Chemistry with Dr Hal featured the following amazing experiments...


Kitchen Science

(c) Andrew massyn
 

Exploding Eggs - Burning Hydrogen

Hydrogen is an extremely flammable gas, but what happens if you fill an egg with it, light the top and retire to a safe distance?

(c) Dave Ansell
Part 1 Part 2 Listen
...or download as MP3 [1] [2]

When to add the milk

We were asked whether if you are going to leave your tea for a while should you add the milk at the start or end of your wait? Which way gives the hottest tea?

 

The Barking Dog Experiment

This is a classic chemistry experiment dating back to the 19th century with impressive, loud and sometimes explosive results.

 

Phosphorus Moon

Dr Hal brought along another classic chemistry experiment, the phosphorus moon, with rather beautiful results.




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